The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 16-35mm F2.8 GM II and the 7artisans 12mm F2.8 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sony FE 16-35mm F2.8 GM II is the longer of the two lenses at 112mm. The 7artisans 12mm F2.8 with a length of 66mm, is 46mm shorter. Besides being longer, the Sony FE 16-35mm F2.8 GM II also has a larger diameter of 88mm compared to the 7artisans 12mm F2.8's 63mm diameter.
Below you can find a scaled side-by-side image of Sony FE 16-35mm F2.8 GM II and 7artisans 12mm F2.8 to get a better idea of how their sizes compare in real life.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. 7artisans 12mm F2.8 weighs 295g, 46% (252g) lighter than the Sony FE 16-35mm F2.8 GM II's weight of 547g.
The Sony FE 16-35mm F2.8 GM II has a filter size of 82mm whereas the 7artisans 12mm F2.8 has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sony FE 16-35mm F2.8 GM II:
And these are the 46mm filters that we recommend for the 7artisans 12mm F2.8:
Both the Sony FE 16-35mm F2.8 GM II and the 7artisans 12mm F2.8 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
7artisans 12mm F2.8 is also available in Canon EF-M and Fujifilm X mounts.
Sony FE 16-35mm F2.8 GM II has a focal range of 16-35mm and 2.2X
zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 24 - 52.5mm
On the other hand, the 7artisans 12mm F2.8 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera.